[swift-users] Creating a NSAttributedString from HTML

[Félix Cloutier]

How did you identify the methods? The source location shows as <unknown>:0 here.

Félix

> Le 15 sept. 2016 à 09:05:06, Erica Sadun <erica at ericasadun.com> a écrit :
> 
>> On Sep 14, 2016, at 9:43 AM, Félix Cloutier via swift-users <swift-users at swift.org <mailto:swift-users at swift.org>> wrote:
>> 
>> I'm trying to create a NSAttributedString from its HTML representation in Swift 3 (from the Xcode 8 GM build). However, this doesn't work:
>> 
>>> import Foundation
>>> import AppKit
>>> 
>>> let html = "<i>hello world</i>"
>>> let data = html.data(using: .utf8, allowLossyConversion: true)!
>>> let attributed = NSAttributedString(HTML: data, documentAttributes: nil)
>> 
>> The error that I get in the REPL (which is essentially identical to the one I get in an Xcode project) is:
>> 
>>> error: ambiguous use of 'init(HTML:documentAttributes:)'
>>> let str = NSAttributedString(HTML: data!, documentAttributes: nil)
>>>           ^
>>> 
>>> found this candidate
>>> found this candidate
>> 
>> How should I do it? And perhaps more importantly, what's being done to allow me to figure it out myself?
> 
> I go to a more complex call until the issue goes away. Then file a bug. For me, adding options in fixed the issue. 
> 
> let attributed = NSAttributedString(html: data, options: [:], documentAttributes: nil)
> 
> Swift seems to struggle with these because without "options", the API could match either one.
> 
>     public init?(html data: Data, documentAttributes dict: AutoreleasingUnsafeMutablePointer<NSDictionary?>?)
> 
>     public init?(html data: Data, options: [AnyHashable : Any] = [:], documentAttributes dict: AutoreleasingUnsafeMutablePointer<NSDictionary?>?)
> 
> -- E

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